adjective 1. next after the seventeenth; being the ordinal number for 18. 2. being one of 18 equal parts.noun 3. an eighteenth part, especially of one (1/18). 4. the eighteenth member of a series. /ˈeɪˈtiːnθ/adjective 1. (usually prenominal)

noun 2.

3. the fraction that is equal to one divided by 18 (1/18)adj.

mid-13c., egtetenþe, modified, by influence of eighteen, from Old English eahtateoða; from eight + teoða “tenth” (see -ty (1)).

[ey-teen-hwee-ler, -wee-] /ˈeɪ tinˈʰwi lər, -ˈwi-/ noun 1. a large tractor-trailer, usually having ten wheels on the cab and eight on the trailer. noun phrase A semitrailer truck; cab and trailer: The driver of the eighteen-wheeler to my left was wearing the uniform of the West Virginia Highway Patrol (1970s+ Citizens band)

[eyt] /eɪt/ noun 1. a cardinal number, seven plus one. 2. a symbol for this number, as 8 or VIII. 3. a set of this many persons or things, as the crew of an eight-oared racing shell. 4. a playing card the face of which bears eight pips. 5. Informal. adjective 6. amounting to eight […]

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